Download Advanced Video Coding Systems by Wen Gao, Siwei Ma PDF

By Wen Gao, Siwei Ma

This ebook offers an summary of the cutting-edge in video coding know-how. particularly, it introduces the instruments of the AVS2 regular, describing how AVS2 will help to accomplish an important development in coding potency for destiny video networks and purposes through incorporating smarter coding instruments akin to scene video coding. beneficial properties: introduces the fundamental strategies in video coding, and offers a brief historical past of video coding know-how and criteria; reports the coding framework, major coding instruments, and syntax constitution of AVS2; describes the major applied sciences utilized in the AVS2 commonplace, together with prediction coding, remodel coding, entropy coding, and loop-filters; examines effective instruments for scene video coding and surveillance video, and the main points of a promising clever video coding procedure; discusses optimization applied sciences in video coding structures; offers a overview of photo, video, and 3D content material caliber review algorithms; surveys the new study subject matters in video compression.

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The probability model is selected according to previous encoded syntax elements or bins, which is also updated with the value of the encoded symbol. 264, CABAC achieves about 9–14 % bitrate saving. 265 standard, more efficient CABAC was designed by reducing the Context dependence. 4 In-Loop Filtering Block-based coded images and videos usually suffer from annoying artifacts at low bit rates. 3 Video Coding Tools 31 ringing artifact. In addition, the motion compensated blocks generated by copying interpolated pixel data from different locations of possibly different reference frames may also incur artifacts.

Temporal multi-hypothesis mode combines two predictors along the pre-defined temporal direction, while spatial multi-hypothesis mode combines two predictors along the pre-defined spatial direction. For temporal derivation, the prediction block is obtained by an average of the prediction blocks indicated by the motion vector prediction (MVP) and the scaled motion vector (MV) in a second reference. The second reference is specified by the reference index transmitted in the bitstream. For temporal multi-hypothesis prediction, as shown in Fig.

Color space provides the representation of the captured image signal. The color space conversion from RGB to YUV with UV downsampled is also an efficient way of data reduction. As the input source of a video codec, it also affects the development of coding tools. Moreover, the quality metric is not only an issue of quality evaluation, but also closely related to the selection of coding tools. References Ahmed N, Natarajan T, Rao KR (1974) Discrete cosine transform. IEEE Trans Comput 100(1): 90–93 Andrews H, Pratt W (1968) Fourier transform coding of images.

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